:root {
    --bc-main: #567;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-weight: normal;
}

body {
    display: flex;
    width: 100vw;
    height: 100vh;
    background-color: var(--bc-main);
    font-family: Helvetica;
    justify-content: center;
    align-items: center;
}

li {
    list-style: none;
}